Democratic candidate Barack Obama will make an appearance on tonight’s “Idol Gives Back” telecast, and both Hilary Clinton and Republican John McCain are expected to join him.

They’re not going to be covering the Beatles or whatever — rather, according to CNN, they’ll be appearing in pre-taped pieces set to air throughout “Idol”’s second-annual charity show.

And while McCain has bizarrely become linked with another uber-popular TV show, “The Hills,” Obama is now claiming that “Idol” is the winner in his household, saying that his daughters Sasha and Malia are both “big ‘American Idol’ fans.”

Last year “Idol Gives Back” raised more than $76 million for charities in Africa and here in the U.S.

And if you missed last night’s “Idol, check out Jim Cantiello’s recap.